Cultivator



Jan. 3. 1928.

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C. G. STRANDLUND cuLTxvnoR Filed Aug. 26. 1921 3 Sheets-Sheet 1 CHRI. G. STRnNoLl/ND 7# Bau Mannen?.

c. G. STRANDLUN@ Jan. 3, 1928.

CULTIVATOR .Inval/1mi @qm G STRFiNnL um:

253g BKM Vfraea E E Patented Jan. 3, 1928.

UNITED STATES CARL G.V STRANDLUND, OF MOLINE, ILLINOIS, ASSIGNOR TO DEERE & COMPANY,

PATEIW` oFFlCE.

MOLINE, ILLINOIS, A CORPORATION OF ILLINOIS.

, CULTIVATOR.

Application filed August 26,

This invention relates to cultivators and has for its object to provide improved means for connecting the cultivating rigs With the cultivator frame and for controlling the movement during the raising and lowering thereof.

Referring to the drawings in which like numerals indicate identical parts- Figure 1 is a top plan view of my cultivator.

Figure 2 is a side elevationon line a-a of Figure 1 showing the cultivator rigs in lowered position.

Figure 3 is a similar view 'to Figure 2 but with the cultivator rigs raised.

Figure t is a rear elevation on line 5 2) of Figure 1.

'Figure 5 is a Figure. 1.

Figure 6 is a detail view of the' arch mounting.

The frame of the. cultivator is compos-ed of front and rea'r channel bars 10 vand 11 which are bentand secured together at each end by means of plate-like members 12 and bolts 13. The members 12 depend from the frame bars and are further secured by means of brace rods 14 which are attached at their lower ends to the lower portion of the members 12 and at their upper ends to the rframe bars. Castings 15 are secured to the members 12 and form a bearing for vertical portion'15l of rearwardly extending crank axles 16 which have outturned portions upon which supporting wheels 17 are journaled.

A bar 18 connects the frame bars 10 and 11 intermediate their length. A supporting member 19 is pivoted at one end to the bar 18 at 20 and upon its rear portion carries a roller 21 which is supported by and rolls upon the channel frame bar 11, as shown in Figure 5. A

Seat bars 22 are secured atvtheir forward ends to the member 19 and extend rearwardly in parallel relationship for most ot' their length, and are secured together by means of a U-shaped brace 23. At their rearward port-ions the seat bars 22 are bent toward each other to form a support for a seat 24. A transversely positioned strap 25 lis secured to the seat bars 22 and to which transverse rods 26 are attached at their inner ends. The outer ends of the rods 26 are attached to arms 27 which are non-rotatably secured to the upper portions 15"L of the axles 16.

cross section on line 6*#6 of 1921. seriai No. 495,694. i

are secured to the channel bars 28 and form transverse horizontal supports for bearings 30, in this instance sections of pipe. Thev bearings 30 are free to move` longitudinally in the brackets 297 but are held from rotary movement by means of set 31 which extend through the brackets 29 and engage a slot 32 in the bearings 30. The bearings 30 receive'the upper horizontal portions of side members 33, the upper horizontal portion of one ofthe members having a threaded reduced portion 34C adapted to engage a tapped opening in the horizontal portion ofthe other member, yas shown in Figure 6. It will be understood each bearing 30 and its side members 33 as an entirety comprise a rig carrying arch. Vith this construction it will be evident that each vside member 33 of the rig carrying arches is.

capable of fore and aft swinging movement in the bearing 30, also that the side members 33 are held from longitudinal movement in relation to theV bearing 30 by the threaded Aportionet and thefdepending portions of `manner, for independent vertical movement. The. rigs 35 carry thel usual cultivating devices 37. The rigs and .frame are pivotally connected together at points rearwardly of the' rig carrying arches by means hereinafter described. i

By positioning the depending portions of the rig carrying arches forwardly of the vertical a number of advantages accrue, namely; it permits the rigs being positioned well forward so the operator may at all times have a. better view of their' operation; it provides better penetration for the shovels 37 as the forward movement of the cultivator tends to force them into the ground; and it provides means for balancing the frame of the cultivator when the-shovels are raised, for when raised the weight of the rigs is transferred forwardly thereby balancing the weight of thevoperator on the seat 24.

, Clips38 are secured to the inner ends of the bearings and links 39 are connected at one end to the clips 38 and extend toward the center of the cultivator where they are connected to forwardlyextending arms of bell cranks 40 mountedon a vertical pivot 4l secured to the supporting member 19. Links 42 are connected at their forward Y ends to lateraly extending' arms of the bell cranks 40 and are connected at their rearward ends to the lowerend ofv a lever 43. The lever v43 is pivoted intermediate its length toone of the seat bars 22 and carries the usual latch and dog device adapted to engage one of a series of notches in a sector 43 secured to the seat bar 22. By stroking thek lever 43, it is evidentthat the arches carrying` the rigs 35 will be moved relativelyto the bracket 29y by reason of the connections described, andzconsequently the arches and rigs will be brought closer together' or spread farther apart depending on whether the operator strokes the lever 43 rearwardly or forwardly.

rlhe cultivating rigs may be raised and lowered either independently or simultaneously in the following manner; rockshafts 44 and 45are journaled in suitable bearings onthe frame bar l1, and have, on their' .outer ends, forwardly extending arms 46 v which are connectedby means of links 47 to castings 48 secured to the outer members 33 of the rig carrying arches. The inner ends of the rock shafts 44 and 45 have upwardly extending arms which form handlevers 4S) and 50. In suitable bearings on the frame bar ll, between vand in alinement with the rock shafts 44 and 45, is journaled a rock Ashaft 51, on one end ofwhich is a master lever 52 provided with the usual latch and dogdevice adaptedvto engage with notches in a sector 52 secured to the frame. Levers 53 and`54 are loosely mounted on the outer portions of the rock shaft 5l and have forwardly extending arms 55 connected by means of links 56 to castings 57 secured to the inner members 33 of the rig carrying varches.v A sector 58 is secured on one side of the masterlever 52 and has notches with which a latch on the lever 54 engages, land on the opposite side of the lever 52 is secured a sector159 having notches with which. a latch on the lever 50 engages. The end oi.

'The

the rock shaft opposite the lever 52 is .upturned and has secured thereto a sector 60, having notches with which a latch on lever 53 engages anda sector' 6l having notches with which alatch on lever 49 engages. By this arrangement of parts it is apparent that each cultivating rig may be raised or lowered independently of the others by actuating the lever tov which it is connected, and that all the rigs may be raised or lowered simultaneously by operating the master lever 52. To aid the operator in lifting the rigs 35 a spring 62 is connected at Vone end to a casting 63 secured to the shaft 51 and at the other end to an eye-bolt 64 secured to a lug 23 on the brace 23, which as has been stated is secured to the seat bars 22.

To provide a horizontal parallel lifting action for the rigs 35 links 65 are pivota-lly connected at their lower ends to the rigs 35V -`upperends to a frame bracket 66 at a point yin horizontal alinement with the bearings 30. It is evident 'that by reason of thelinks` 65 being parallel with and substantially the same length as the depending 'portions of the rig carrying arches, that as the latter are swungforwardly and upwardly the rigs 35 will be raised in vhorizontal parallel re1ationship.

` rEhe cultivatoris guided by meansv 'of foot levers 67 and 68, journaled 'in'bearings' 69 and 70 secured to the seat bars 22. The foot lever 67 is rprovided with an upwardly extending arm 6l at the opposite sideof the seat support from that at which'said foot lever depends, which arm is connected by means of a link`72 with one of the inner lframe brackets 65, so thatsaid foot'lever '67 is connected with'the frame ofthe culti- Avater 'at the opposite side of thev 'seat eupfrom that at which said lever is placed` foot lever 68 is located at the opposite side of the seat support from'the lever 67, and in like manner it is provided with an upwardly extending arm 63 that connected by a link 7l to one of the inner frame brackets (36 at the opposite side of the seat support from that at which the lever 63 is located. This arrangcanent is shown in Figs. l. 2, 3 and 5. As best shown in liig. l the links 7l, 7 2 converge rearwardly. lt evident that bypushingl forward on the lower end of either of the vfoot levers.' the seatbars 22 will lie-swung laterally in onedirection or4 the other about the pivot 20, and the frame will move Abodily endwise. or transversely of the machine in the opposite direction guiding the eultivatory as any entirety in that direction. Itwillbe .noted that, as clearly shown in Fig. 1,'the spring port lllll lao' dfi

62 lies in the median line of the cultivator when the seat bars are in their normal position, at which time the wheels are also in their normalv position. Vhen, however, the seat bars are swung laterally to guide the wheels to one side orthe other, and thel frame is consequently moved in the direction opposite to that-in which the seat bars swing, as the rear end of said spring is connected with the seat bars and the front end thereof evener bars 74 to which are attached singletrees 75 are pivotally connected to the members 28, and at th-eir outer ends .the ev-ener bars 74: are connected with `Jthe frame by means of draft links 76.

VVha-t I claim is- 1. In a cultivator, the combination of a frame, axles mounted on said fram-e, `supporting wheels journaledon said axles, an arch supported by the frame and comprising downwardly extendingr side members mounted to swing fore and aft independently of each other, and means for holding said arch men'ibers in fixed spaced relation to each other, cultivator rigs connected with the lower portions ofthe arch members on transverse horizontal axes, means for moving the arch members transversely in the same direction in unison and means mounted on the frame and operable t0 raise or lower the cul'tivator rigs. i

2. In a cultivator, the combination of a frame, axles mounted on said frame, supporting wheels journaled on said axles, an arch supported by the frame and comprising downwardly extending side members having upper horizontal portions journaled on 'the frame, said side members being adapted to swing fore and aft independently of each other, and means holding said side members in fixed spaced relation to each other, cultivator rigs connected with the lower portions of the arch members on transverse horizontal axes, links parallel with the depending portions of the arch members and pivotally connecting the rigs to the frame at points removed from the arch, means for moving the arch members transversely in the same direction in unison, and means mounted on the frame and operable to raise or lower said rigs.

3. In a cultivator, the combination of a frame, axles mounted on said frame, supporting wheels journaled on said axles, a

transverse horizontal arch support mounted von said frame,an arch mounted on said suppoit and comprising a bearing, side members journaled in said bearing to swing fore and aft independentlyfof each-other, and means for holding said side members from longitudinal movement with relation to said bearing, cultivator rings connected with the lower portions of the archmembers on transverse horizontal axes, means' for moving said bearing and said arch members transversely in unison, and means mounted on the frame and operable to raise or lower the cultivator rigs.

4. In a cultivator, the combination of a frame,` axles mounted on said frame, supporting wheels journaled on said axles, a transverse horizontal arch support mounted on said frame, an arch transversely shiftable on said support and comprising a bearing, side membersy journaled in" said bearing to swing forward and upwardv independently vof each other, and means forholding said side members from longitudinal vmovement with relation to said bearing, cultivator rigs connected with the lower portions of the arch members on transverse horizontal axes, means mounted on the frame and operable to raise or lower the cnltivator rigs, means for maintaining the rigs inv a horizontal position while they are being raised or lowered, and means for shifting said arch transversely onl said support.

5; .In a c.ultivator, the combination of a frame, axles mounted on said frame, supporting wheels journaled on lsaid axles, a

'transverse horizontal arch support mounted on the frame, an arch mounted on said arch support and comprising a tubular bearing member, side members having upper horizontal portions journaled in said bearing member, and means connecting said horizontal portions together and arranged to permit said side members `to swing forward and upward independently of each other, cultivator rigs connected with the lower porti-ons of said archmembers on transverse horizontal axes, links parallel with the depending portions of the arch members and pivotally connecting 'the rigs with the frame at points removed from the arch, and means mounted on the frame and operable to raise or lower the eultivator rigs.

G. In a cultivator, the combination of a frame, axles mounted on said frame, snpporting wheels journaled on said axles, an arch comprising side members having horizontal portions jonrnaled on the frame to swing fore and aft independently of each other, the inner ends of said horizontal portions being connected together to hold said arch members in ixed spaced relation to each other, eultivator rigs connected with the lower portions of said arch members on transverse horizontal axes, means operable to move said arch members transversely ot the trame in unison, and means mounted on fit) the traine and operable to raise -or lower the eultivatorrigs. y I

7. In a eultiva'tor, the combination ot a trame, axlesmounted on said trame, supportingI wheels journaled on saidv axles, an arch supportedby the frame, and comprising` downwardly extending side members having' upper horizontal portions, a tubular bearing l'or said horizontal portions, means connecting the inner ends of said horizontal portions` together to hold them .inA fixed spaced relation to each other, meanwhile per mittiircj them to swine; itore and att: independently ot each other, a support toi' said tubular bearing.carried bythotraine, said bearing being movable endwise with respect to said` support, cultivator rigsconuected with the lower portions ot the arch members on. transverse horizoi'ital axes,.means oper.-

able to move saidv tubularbearing'- endwise,

and means mounted on the trame and operable to raise or lowerthe cultivator rigs. v

8. ln a cultivator, the combination of a trame, axles mounted on said iframe, supporting wheels journaled on said axles. arches supported byV the trame at opposite sides thereo't and in substantial alinement with each other, each ot said arches comprising; a pair ot -oppositely disposed downuf'ardly extending' side members mounted to swing fore and att independently of each other, and means for holding; the men'ibers of each arch in xed spaced 'relation to each other, cultivator rigs connected with the lower portions ot said .arch members on transverse horizontal axes, means operable to move said arches toward or from each other, and means mounted on the frame and ope "able, to raise or lower the cultivator V9. ln. a cultivator, thev combination ot a trame,` axles mounted on said trame, supporting wheels journaled on said axles, arch supports at opposite sides ot said trame in substantial alinement with each other, arches pi totally mounted on said supports, each ot said arches 'comprising a tubular bearing member movable longitudinally with respectto its sui'ipoi't, a pair oit oppositel'v disposed arch members liaviirgr horizont-al. portions journaled in said bearing' members .to swing tore and aft independently vof eachother, and means for holding saidarch members in fixed spaced relation to each other, cultivator rigs connected with the lower portions. of said archfii'iei'nbers on transverse horizontal axes, means operable to move said bearing,` members toward or :trom each other, and means mounted on the iframe and operable to raise orlower the eultivator rigs. f

l0. In a cultivator, the combination. of a trame, axles mounted ori-said frame, supporti ng wheels journaled on said axles, arch Supports at. opposite sides otsaid :trame in substantial alinement with each other, arches pivotally mounted on said supports, Leach',

ot said arches comprisinga tubular bearing member movable longitudinally with respect to its support, and a pair oil' loppositely disposed ,arch members having horizontalV porvarch supported by the trame and comprisingr downwardlyY and forwardly extending; side members mounted to swing tore and aft independently of each other, means for holding said arclimembers in fixed spaced relation to each other, cultivator rigs connected with the lower portions ot the arch members on transverse horizontal axes, links parallel with the depending portions Vof `the arch .members and pivotally connecting .the rigs .to the 'frame at points removed fromthe arch, and means mounted on they frame and operable to swinev the side members ot the arch .tore and Yatt either independently or simultaneously to raise and lower the cultivat-or rigs.

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